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Characteristics for grade АCHK-2 ( АЧК-2 )

Grade :	АCHK-2 ( АЧК-2 )
Classification :	Antifriction iron castings
Equivalent grades:	Is absent

Chemical composition in % for grade АCHK-2 ( АЧК-2 )

C	Si	Mn	S	P
2.6 - 3	0.8 - 1.3	0.2 - 0.6	max 0.12	max 0.25

Brinell hardness for АCHK-2 ( АЧК-2 ) , GOST 1585-85

HB 10^-1 = 167 - 197 MPa

Limiting operating condition of the material АCHK-2 ( АЧК-2 )

Load	Speed	*Load Speed**	Temperature
MPa	m/s	*MPa m/s**	Grade
0.5	5	2.5
12	1	12

Types of delivery of grade АCHK-2 ( АЧК-2 )

В81 - Castings of cast iron (gray and malleable cast iron)

Specification :

Mechanical properties :
s_в	- Tensile strength , [MPa]
s_T	- Yield stress, [MPa]
d₅	- Specific elongation at fracture , [ % ]
y	- Reduction of area , [ % ]
KCU	- Impact strength , [ kJ / m²]
HB	- Brinell hardness , [MPa]

Physical properties :
T	- Test temperature , [Grade]
E	- Young modulus , [MPa]
a	- Coefficient of linear expansion (range 20^o - T ) , [1/Grade]
l	- Termal (heat) condition coefficient , [Watt/(m·Grade)]
r	- Density , [kg/m³]
C	- Specific heat ( range 20^o - T ), [J/(kg·Grade)]
R	- Electrical resistance , [Ohm·m]

АCHK-2 ( АЧК-2 ) - Antifriction iron castings: chemical composition, mechanical and physical properties, hardness
Database of steels and alloys (Marochnik) contains information about chemical composition and properties more then 3000 steels and alloys

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